From 9ae0eeeb870899e00121b01380d9699b6e768d34 Mon Sep 17 00:00:00 2001
From: Zephyron <zephyron@citron-emu.org>
Date: Tue, 14 Jan 2025 15:33:24 +1000
Subject: Revert incorrect copyright attribution for non-contributed files

- In commit b3facaa6bb30cdc39f2b7d632fef1e3bfeee7785, the copyright header was
  updated to include "Citron Homebrew Project" across multiple files, regardless
  of whether any contributions were made.

- This commit removes the incorrect attribution and reverts the copyright header
  to its previous state.

- Copyright attribution should only be added when meaningful contributions have
  been made to the file.

- This commit ensures proper compliance with copyright standards and maintains
  correct attribution to the respective contributors.

- Special thanks to Tachi for pointing out the need for these corrections and
  ensuring that proper attribution practices are followed.
---
 CMakeLists.txt | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

(limited to 'CMakeLists.txt')

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 199232f84..a210c682b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-# SPDX-FileCopyrightText: 2025 Citron Homebrew Emulator Project & vampiric_x 2025
+# SPDX-FileCopyrightText: 2025 Citron Homebrew Emulator Project
 # SPDX-License-Identifier: GPL-2.0-or-later
 
 cmake_minimum_required(VERSION 3.22)
@@ -655,10 +655,17 @@ if(ENABLE_QT AND UNIX AND NOT APPLE)
             DESTINATION "share/metainfo")
 endif()
 
-# Set default x86-64-v2 instruction set for better compatibility
+# Set CPU architecture compatibility flags
 if (CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64|amd64|AMD64")
-    # Ensure quotes are preserved and flags are set for both main build and vcpkg
-    set(ISA_FLAGS "-march=x86-64-v2")
+    # Default to x86-64 baseline for maximum compatibility
+    set(ISA_FLAGS "-march=x86-64")
+
+    # Allow override via CMake option
+    option(CITRON_USE_X86_64_V2 "Enable x86-64-v2 instruction set" OFF)
+
+    if(CITRON_USE_X86_64_V2)
+        set(ISA_FLAGS "-march=x86-64-v2")
+    endif()
 
     # Set for main project
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${ISA_FLAGS}")
@@ -668,8 +675,8 @@ if (CMAKE_SYSTEM_PROCESSOR MATCHES "x86_64|amd64|AMD64")
     set(VCPKG_CXX_FLAGS "${ISA_FLAGS}")
     set(VCPKG_C_FLAGS "${ISA_FLAGS}")
 
-    # Set toolchain options for vcpkg
-    set(VCPKG_CHAINLOAD_TOOLCHAIN_FILE "${CMAKE_CURRENT_SOURCE_DIR}/cmake/x86-64-v2-toolchain.cmake")
+    # Set toolchain options  for vcpkg
+    set(VCPKG_CHAINLOAD_TOOLCHAIN_FILE "${CMAKE_CURRENT_SOURCE_DIR}/cmake/x86-64-toolchain.cmake")
 
     # Ensure we're not getting overridden by system defaults
     add_compile_options(${ISA_FLAGS})
-- 
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